*{
    margin:0;
    padding:0;
}
body{
    background:#333;
    overflow:hidden;
}
.main{
    width:100%;
    height:100vh;
    position:fixed;
    background:url("starry-sky-1209242.jpg");
    background-size: cover;
    background-position: center bottom;
}
#canvas{
    filter:drop-shadow(0 0 1px white) ;
}
